Example 2: How does soil pH affect diversity?
Moderator comments
|
Criterion |
Pl |
DCP |
DEC |
|---|---|---|---|
|
Achievement level awarded |
5 |
||
|
Achievement of aspects |
c, c, p |
Assessment
Data collection and processing
Recording data
Complete
The data tables are clear and easy to read. Although it is probably not ideal to have tables that include both processed and raw data, in this example, the student’s tables are clear and do not affect interpretation.
Processing data
Complete
Presenting processed data
Partial
The student should have used a scatter plot graph, possibly with a line of best fit, to show the positive relationship between pH and biodiversity. The final table of results, comparing pH and biodiversity, should report all pH readings to the same number of decimal places.